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To: Fitz who wrote (22103)	2/6/1999 5:58:00 PM
From: jach	Read Replies (1) \| Respond to of 77397

As Gbit and High-speed becomes commodity and easy to implement, GBit switches and routers price will come down substantially. February 08, 1999, Issue: 1047 Section: Communications CMOS parts debut for Gigabit Ethernet Loring Wirbel Vitesse Semiconductor Corp. (Camarillo, Calif. ) is debut-ing a range of CMOS-based serializer/deserializer transceivers for Gigabit Ethernet, Fibre Channel and serial-backplane applications. The VSC7123 and VSC7133, first in the CMOS Velocity family, integrate 8B/10B Serdes functions for both Gigabit Ethernet or Fibre Channel applications. The company has planned for several quarters to add higher-layer protocol functions to physical-layer devices at mature optical rates. Fred Weniger, product manager for gigabit products at Vitesse, said there should be no surprise that the GaAs-centric company is offering at least nine CMOS transceiver products in 1999. The key to making fiber networking ubiquitous in the 21st century, Weniger said, is making overall costs affordable by using lowest-cost process, lowest-cost package and simplest electrical interface. Vitesse anticipates that its CMOS product line will scale to meet 2.5-Mbit/second speeds for both serial backplane and OC-48 Sonet applications, with GaAs remaining the workhorse for speeds of 10 Gbits/s. While IBM is the primary foundry for Vitesse's Velocity product line, the family is designed to be compatible with common processes, such as that used by Taiwan Semiconductor Manufacturing Corp., for portability of products between fabs. A variety of devices that integrate four channels, or add encoder/decoder functions, are planned for 1999 introductions. Other high-speed vendors are turning to CMOS for the same reasons-Applied Microcircuits Corp., for example, introduced quad 622-Mbit transceiver devices in January. Weniger said Vitesse expects switch designs, both those using traditional crosspoints and designs based on Vitesse's new CrossStream architecture, to become the primary application for the CMOS Velocity family. CrossStream, introduced in December, is a serial-switch solution for full word synchronicity, eliminating phase-acquisition time, providing a high-speed part that functions as parallel switching at the user interface. Copyright ® 1999 CMP Media Inc.